Just being intellectual is enough on every post you'll create.
More on point ideas on every discussion, I know merits will come to you. Just make it sure that it's well constructed and definitely not a shitpost.
The only thing I want to advise for you is, don't focus on merits because if you're really targeting the knowledge where you can learn it through discussion, merit is not a big deal. If you're truly a great person and dedicated on what you're doing, it will bring you in the top automatically, just go with the process.